BMW 6 Series Gran Turismo (2019) is 3 mm (0.12 inch) wider, 49 mm (1.93 inch) higher, 350 kg (772 lbs) lighter and has 109 liters (3.85 ft3) bigger cargo space than Mercedes S-Class (2015).
Mercedes S-Class (2015) is 155 mm (6.10 inch) longer than BMW 6 Series Gran Turismo (2019).